ASF UNIVERSAL ASF_Optical PD Ruler Vision Test Chart (E)

ASF UNIVERSAL- ?MEASURE PUPIL DISTANCE?Eye ophthalmic ruler tool helps you to measure pupil distance. Place the pupilary ruler on your nose as close to your eye as possible, then find the middle of your pupil in the mirror and read the line closest to the middle of your pupil. ?FOR HOME AND COMMERCIAL USE?The pupillary distance ruler is convenient to use with either your right or left hand, it can also be used to measure eyeglass frame for replacement. Suitable for nursing providers, opticians, and eyewear manufacturers to provide gifts to their customers.